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Comment by azinman2 | Hacker News Reader

DNS doesn’t help when you’re having to manually enter an IP into a config, which is what the OP implied.

My experience is contrary:

Put the “interesting” addresses in DNS immediately upon acquiring/configuring them.

When you need a literal - lookup DNS name, copy-paste from one terminal into the other. I do this for both Ipv4 and Ipv6 addresses.

Turns out the human brain sometimes does also have difficulty figuring the differences between 192.168.129.1 and 192.186.130.1 when one of them is mistyped....

You still need to put that ip address manually into a few places to have that setup (dns, static ip settings, possibly router settings, etc.)

If an application supports IPv6, it should support DNS. If it doesn’t support DNS, that feels like a bug.

The only configuration item that should require manual entry of an IPv6 address is a NIC. Even that has other mechanisms. Everything else should support DNS.

Edit: doh, the second place is the dns zone file

So you gotta log into your registrar and copy paste your IPv6 address and wait god knows how long for it to propagate...

Or you can host your own dns. Or you can get a decent dns host. It doesn’t need to be your domain registrar, much like you don’t need your website or email hosted with your domain registrar.

DNS doesn't actually "propagate", all you're waiting for is the caches to expire, and you can control that by keeping a low TTL on the record.

Again, to me the OP is talking explicitly about places where you have to enter it in. What are the other mechanisms? Let’s forget about situations where you can copy/paste or use DHCP.

My answer would be to use my phone to take a photo of the address (if not easily accessible via web browser), and then use that to manually enter it. Probably not a situation where you can rely on memory, unfortunately.

Outside of the NIC and DNS, where else do you need to enter in an IP literal?

Firewalls, for example. We have huge files containing risk levels for various IP addresses. Most of it is automated, but sometimes we have to tweak something manually. These aren't IP addresses that we control, so DNS isn't helpful. Often we're dealing with ranges as well, for which DNS is also unhelpful.

Technically, you could claim you're authoritative, just hope the assignments don't leak ;-)

Dns resolver Internal IPs

Connecting to things on your local network

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